I would agree that if it's truly random there would be little to no effect. I'm just not sure IIRC that it IS truly random. I would want to see a real world sample of how often it happens to know for sure. There would be mitigating circumstances if say, there are several sandbaggers that AREN'T truly 450's, which we KNOW is the case.
You (and other here) misunderstood that situation. That 450 REALLY IS a 450: 450 for thousands of games in big tournaments, 450 for lots of league games, and 450 for lots of games in little tournaments. It is this recent small batch of tournaments that was anomalous. It's not clear these recent tournaments happened at all.